Heading to wet destinations, be it from weather or swimming, I pack my diver’s shammy and water shoes.
The shammy tacks up little space and dries fast, perfect for travel.
The shoes take up precious space, so I always debate. I have a pair of Merrell’s that double as proper shoes that I can wear for an all-day hike in the jungle and not have shredded feet. That’s why I prefer them over sandals.